writing is hard -- on your body.
after years of sitting in front of the computer, i've developed arthritis in my neck and shoulder. not unusual for a writer. it's taken me several more years to come up with promising strategies for getting around the pain. the biggest thing was to get rid of my desktop. with a laptop, you can change positions throughout the day. stand, sit, lie down, get the keyboard as close as possible. i'm not left-handed, but i learned to use a mouse with my left hand. and i quit using the cap key!! every movement you can eliminate helps. and if you haven't yet developed problems, take care of yourself now.